Finding the Fourth Proportional to 1,128,467.94, 1,557,314.40 and 619,170.18
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Solution
The fourth proportional to 1,128,467.94, 1,557,314.40 and 619,170.18 is: 854,470.56
Step by Step Solution
- Step 1: Write the proportion equation
1,128,467.94 : 1,557,314.40 = 619,170.18 : x - Step 2: Convert to fraction form
1,128,467.94/1,557,314.40 = 619,170.18/x - Step 3: Cross multiply
1,128,467.94x = 1,557,314.40 × 619,170.18 - Step 4: Simplify right side
1,128,467.94x = 964,242,637,364.59 - Step 5: Solve for x
x = 964,242,637,364.59/1,128,467.94 - Step 6: Final answer
x = 854,470.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.